CVE-2026-33750
brace-expansion: Zero-step sequence causes process hang and memory exhaustion
6.5
MEDIUM
CVSS 3.1
EPSS 0.43%
描述
The brace-expansion library generates arbitrary strings containing a common prefix and suffix. Prior to versions 5.0.5, 3.0.2, 2.0.3, and 1.1.13, a brace pattern with a zero step value (e.g., `{1..2..0}`) causes the sequence generation loop to run indefinitely, making the process hang for seconds and allocate heaps of memory. Versions 5.0.5, 3.0.2, 2.0.3, and 1.1.13 fix the issue. As a workaround, sanitize strings passed to `expand()` to ensure a step value of `0` is not used.
如何修補 CVE-2026-33750
要修補 CVE-2026-33750,請將受影響套件升級到下列已修補版本。
- —未列出修補版本
- —升級至 5.0.5 或更新版本
CVE-2026-33750 正在被利用嗎?
低 — EPSS 為 0.4%,目前沒有觀察到大規模利用活動。
受影響套件(2)
- from 0
- >= 4.0.0, < 5.0.5
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |